When the Fukushima nuclear crisis — now ranked at level 7 — banned certain Japanese exports, we all wondered what effect the disaster would have on something San Franciscans love to eat: sushi. Henry Icinose of San Francisco’s ABS Seafood Inc., the fish supplier to ICHI Sushi in Bernal Heights, tells 7×7 that most of the fish his company purchases comes from the Fukuoka area of Japan, far south of Fukushima, below Tokyo and Sendai. “To put it into perspective,” he tells us, “the distance from Sendai to Fukuoka is roughly the equivalent of Seattle to San Francisco.” Ichinose also says that the radiation levels in fish are checked every 6 hours in Japan, and that the FDA is closely monitoring imports from Japan, including seafood from areas other than of the Fukushima, Ibaraki, Tochigi and Gunma prefectures.